Here we look at how blood transfusions started as an experiment four centuries ago, and became the modern-day life saver they are.

We know blood is vital for life, do we know why?
Illuminations: Blood Equality by Jordan Eagles (USA) Image credit: David Meanix and courtesy of artist as part of Science Gallery Melbourne’s BLOOD exhibitionJuly 23, 2017

Weight loss often leads to declines in our resting metabolic rate – how many calories we burn at rest – which makes it hard to keep the weight off. So why does weight loss make resting metabolism go down?

The only approach that you don’t find used in menstrual power protests is the use of menstrual blood as a love charm. Perhaps that's because it taps into the deepest fears of people, especially of heterosexual men, of being entrapped by the power of women’s fertility.

Staph aureus bloodstream infection has a 12-month death rate of between 20 and 35%.
Joe Techapanupreeda/ShutterstockApril 8, 2015

Few discoveries have revolutionised the practice of medicine as much as the discovery of human red blood cell groups. Unlike modern vampire and Time Lord mythologies, blood groups don’t have a particular…